Question

Simplify (x+y)(x-y)( 2 + 2 )​

Answer 1

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This is in the form of a^2 - b^2 = (a + b) * (a - b)

Thus, (x + y)^2 - (x - y)^2 = (x + y + x - y) * (x + y - x + y)

                                                    = 2x * 2y

                                                    = 4xy

Thus, (x + y)^2 - (x - y)^2 = 4xy.

Answer 2

Answer:

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